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#!/usr/bin/env ruby
if RUBY_ENGINE == 'ruby' || RUBY_ENGINE == 'rbx'
require 'mkmf'
require 'rbconfig'
def system_libffi_usable?
# We need pkg_config or ffi.h
libffi_ok = pkg_config("libffi") ||
have_header("ffi.h") ||
find_header("ffi.h", "/usr/local/include", "/usr/include/ffi",
"/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/ffi",
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/ffi") ||
(find_header("ffi.h", `xcrun --sdk macosx --show-sdk-path`.strip + "/usr/include/ffi") rescue false)
# Ensure we can link to ffi_prep_closure_loc
libffi_ok &&= have_library("ffi", "ffi_prep_closure_loc", [ "ffi.h" ]) ||
have_library("libffi", "ffi_prep_closure_loc", [ "ffi.h" ]) ||
have_library("libffi-8", "ffi_prep_closure_loc", [ "ffi.h" ])
if RbConfig::CONFIG['host_os'] =~ /mswin/
have_library('libffi_convenience')
have_library('shlwapi')
end
libffi_ok
end
dir_config("ffi_c")
# recent versions of ruby add restrictive ansi and warning flags on a whim - kill them all
$warnflags = ''
$CFLAGS.gsub!(/[\s+]-ansi/, '')
$CFLAGS.gsub!(/[\s+]-std=[^\s]+/, '')
# solaris 10 needs -c99 for <stdbool.h>
$CFLAGS << " -g -std=c99" if RbConfig::CONFIG['host_os'] =~ /solaris(!?2\.11)/
# Check whether we use system libffi
system_libffi = enable_config('system-libffi', :try)
if system_libffi == :try
system_libffi = ENV['RUBY_CC_VERSION'].nil? && system_libffi_usable?
elsif system_libffi
abort "system libffi is not usable" unless system_libffi_usable?
end
if system_libffi
have_func('ffi_prep_cif_var')
$defs << "-DHAVE_RAW_API" if have_func("ffi_raw_call") && have_func("ffi_prep_raw_closure")
else
$defs << "-DHAVE_FFI_PREP_CIF_VAR"
$defs << "-DUSE_INTERNAL_LIBFFI"
# Ensure libffi symbols aren't exported when using static libffi.
# This is to avoid interference with other gems like fiddle.
# See https://github.com/ffi/ffi/issues/835
append_ldflags "-Wl,--exclude-libs,ALL"
end
# Some linux archs need explicit linking to pthread, see https://github.com/ffi/ffi/issues/893
append_ldflags "-pthread"
ffi_alloc_default = RbConfig::CONFIG['host_os'] =~ /darwin/i && RbConfig::CONFIG['host'] =~ /arm|aarch64/i
ffi_alloc_default = ffi_alloc_default || RbConfig::CONFIG['host'] =~ /hppa/i
if enable_config('libffi-alloc', ffi_alloc_default)
$defs << "-DUSE_FFI_ALLOC"
end
$defs << "-DHAVE_EXTCONF_H" if $defs.empty? # needed so create_header works
create_header
create_makefile("ffi_c")
unless system_libffi
File.open("Makefile", "a") do |mf|
mf.puts "LIBFFI_HOST=--host=#{RbConfig::CONFIG['host_alias']}" if RbConfig::CONFIG.has_key?("host_alias")
if RbConfig::CONFIG['host_os'] =~ /darwin/i
if RbConfig::CONFIG['host'] =~ /arm|aarch64/i
mf.puts "LIBFFI_HOST=--host=aarch64-apple-#{RbConfig::CONFIG['host_os']}"
end
mf.puts "include ${srcdir}/libffi.darwin.mk"
elsif RbConfig::CONFIG['host_os'] =~ /bsd/i
mf.puts '.include "${srcdir}/libffi.bsd.mk"'
elsif RbConfig::CONFIG['host_os'] =~ /mswin64/i
mf.puts '!include $(srcdir)/libffi.vc64.mk'
elsif RbConfig::CONFIG['host_os'] =~ /mswin32/i
mf.puts '!include $(srcdir)/libffi.vc.mk'
else
mf.puts "include ${srcdir}/libffi.mk"
end
end
end
else
File.open("Makefile", "w") do |mf|
mf.puts "# Dummy makefile for non-mri rubies"
mf.puts "all install::\n"
end
end
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